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91852 (1999 UD8)
Classification: Main-belt Asteroid          SPK-ID: 2091852
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062296441857291 4.9945e-08  
a 2.933719528155941 1.5907e-08 au
q 2.62207154653921 1.4914e-07 au
i .9199528444675089 4.3454e-06 deg
node 259.624501094974 0.0002775 deg
peri 118.9801238752575 0.00027811 deg
M 55.10547060832756 1.7389e-05 deg
tp 2458719.556797063588
(2019-Aug-24.05679706)
8.8858e-05 TDB
period 1835.38135035588
5.03
1.4928e-05
4.087e-08
d
yr
n .196144523278607 1.5953e-09 deg/d
Q 3.245367509772672 1.7597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      9693 days (26.54 yr)  
   first obs. used      1993-07-13  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50318  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:38:17  

Additional Information
 Earth MOID = 1.62417 au 
 Jupiter MOID = 2.21569 au 
 T_jup = 3.267 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO266326  

91852 (1999 UD8)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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